Nonvascular Interventions of the Urinary Tract

Nonvascular intervention of the urinary tract is a well-established uroradiologic subspecialty, which is more important for avoiding invasive open surgery in the age of rising demand about the value of less invasive treatment. Various kinds of nonvascular intervention are recently performed under image-guidance and are as follows: percutaneous nephrostomy, percutaneous nephrostolithotomy, percutaneous dilatation of the urinary tract, sclerotherapy for renal cysts, percutaneous catheter drainage, percutaneous foreign body retrieval and biopsy. Percutaneous nephrostomy is a basic technique to provide a direct access to urinary tract, which makes it possible to perform other interventional procedures. Although nonvascular intervention may produce some complications, it is generally considered to be less invasive than open surgery and has advantages such as short hospital stay, early return to normal life and therefore economic savings. This review is described to help clinicians easily understand the procedures, indications, techniques, and complications with figures of cases the authors experienced.

The value of digital photography in monvascular intervention / 介入放射学杂志

Objective To investigate the property and value of digital photographic technology in nonvascular intervention. Methods The nonvascular interventional photographies of 204 procedures were retrospectively analyzed, including 126 in digital subtraction angiography (DSA) unit (DSA group) and 78 in digital X ray unit (non DSA group) The quality of images of contrast photography was evaluated. Results The image of the inspected tracts were clear in 104 (82%) of DSA group and 66(85%) of non DSA group respectively. Conclusions The good quality images of digital photography can be obtained in nonvascular interventional radiology, which is analogous to that on DSA unit.